Jose Mourinho has vowed to save Roman Abramovich another huge compensation bill by quitting if his Chelsea return is a failure.

Chelsea owner Abramovich had to pay the Special One and his backroom staff £18million, when he sacked them in 2007.

Mourinho has promised he will walk away this time – but only if he fails to land more trophies.

The Portuguese boss won two ­Premier League titles, one FA Cup and two League Cups during his first spell as the west Londoners' boss and wants more of the same this time around.

Ahead of his first match back against Hull on Sunday, Mourinho said: “Of course, it is about winning trophies.My DNA didn’t change, my nature didn’t change. I am not the kind of person to be at the same club for three or four years without winning a ­trophy.

“In this case, I don’t need the club to say ‘we are not happy with you, goodbye’. I will be the first one to say ‘I gave everything I could but I didn’t succeed, so let’s both go and try a different thing’.

“My feeling is the ­trophies will arrive naturally without obsession, they will arrive naturally, based on the stability because there is big empathy between the different sectors at this club

“Chelsea need some stability. In this moment, the club is ready for that and I am ready for that.

“When I came the first time, I still had the passion of going around and trying to win other championships and trying to make myself better by going to other football countries.

“But now, I don’t see myself in Spain coaching another club and I don’t see myself coaching another club in Italy other than Inter.

“I don’t see myself in other Leagues because I have a connection with Chelsea. I have quite a long contract here and I hope at the end of it we both want to keep together.”

Mourinho has revealed only one pre-match ritual he will carry out ahead of the clash against newly-promoted Hull at Stamford Bridge.

The 50-year-old admits he needs a hug from his son, Jose Mario Jr, before taking his place in the dug out.

“Since my son grew up and goes to every football game, I wait for him and he comes down for a hug,” said Mourinho. “He did this at Inter Milan and Real Madrid, and he is going to do it now. I like that, I feel comfortable when the kid comes.

“It’s not a superstition, just a good feeling.”

Mourinho refused to promise that he won’t create more mischief in the Premier League this season but will be seeking any advantage possible.

“I want to show people I am stable, but you can be stable and also emotional,” he said.

His team trained at Stamford Bridge on Saturday, and he added: “The most important thing for me to know is how the grass is and the length of the grass. Do we put water on it? This is more important than other things.”